US5122365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Teeth whitener
Assignee: Natural White Inc
•
Filing: 1989-02-15
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Granted: 1992-06-16
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Expires: 2009-02-15
Abstract
Abstract PCT No. PCT/US89/00630 Sec. 371 Date Oct. 10, 1990 Sec. 102(e) Date Oct. 10, 1990 PCT Filed Feb. 15, 1989 PCT Pub. No. WO90/09165 PCT Pub. Date Aug. 23, 1990.A three component system and method for whitening teeth that comprises four primary active ingredients. The first component is a pre-conditioning mouth rinse comprised of a dilute aqueous solution of acetic acid and flavor enhancing additives. This component cleanses the pellicle film on the user's teeth. The second component is a bleaching gel including hydrogen peroxide. This gel also includes flavor enhancers, preservatives or surfactants necessary to formulate the gel. The preferred concentration of hydrogen peroxide is about six percent. The third component of the teeth whitening system is a polishing and pigmenting cream or paste that includes an abrasive substance and a pigmenting agent. The abrasive agent is preferably an alumina silicate and the pigmenting agent is preferably titanium dioxide particles. Flavor enhancers, a carrier, thickening agents, surfactants, preservatives and water are also to formulate the cream or paste. Methods of use formulation of the products are included.
Inventors
- 👤 Ron Murayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:06
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/22; A61K8/30; A61K8/33; A61K8/36; A61K2800/00; A61K2800/80; A61K2800/88
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
141 words
A three component package for whitening human teeth wherein each component is applied to the teeth in a sequential manner, said three component package comprising: a first component comprising a conditioning mouth rinse capable of cleansing the surface of said teeth, said mouth rinse comprising an aqueous solution of acetic acid; and a second component comprising a viscous bleaching gel including an effective concentration of hydrogen peroxide for bleaching said teeth, said hydrogen peroxide present in an amount ranging from 1 to 10% by weight of the total gel; and a third component comprising a viscous polishing composition including an abrasive substance comprising alumina silicates for polishing said teeth and a pigmenting agent capable of imparting a white color to said teeth, whereby said conditioning rinse, said bleaching gel and said polishing composition are applied individually and seriatim to said teeth.
Claim 2
Dependent Claim
141 words
A three component package for whitening human teeth wherein each component is applied to the teeth in a sequential manner, said three component package comprising: a first component comprising a conditioning mouth rinse capable of cleansing the surface of said teeth, said mouth rinse comprising an aqueous solution of acetic acid; and a second component comprising a viscous bleaching gel including an effective concentration of hydrogen peroxide for bleaching said teeth, said hydrogen peroxide present in an amount ranging from 1 to 10% by weight of the total gel; and a third component comprising a viscous polishing composition including an abrasive substance comprising alumina silicates for polishing said teeth and a pigmenting agent capable of imparting a white color to said teeth, whereby said conditioning rinse, said bleaching gel and said polishing composition are applied individually and seriatim to said teeth.
Claim 3
Dependent Claim
20 words
The package as set forth in claim 1 wherein said conditioning rinse comprises a dilute aqueous solution of acetic acid.
Claim 4
Dependent Claim
24 words
The package as set forth in claim 2 wherein said acetic acid is present in said rinse at a concentration of approximately 1.5 percent.
Claim 5
Dependent Claim
28 words
The package as set forth in claim 1 wherein said conditioning rinse further includes substances selected from the group consisting of flavor enhancers, preservatives, surfactants and mixtures thereof.
Claim 6
Dependent Claim
88 words
The package as set forth in claim 4 wherein said flavor enhancers are selected from the group consisting of sweeteners and flavoring chemicals, said sweeteners are selected from the group consisting of saccharin, sodium saccharin, methyl salicylate, sorbitol and aspartame, said flavoring chemicals are selected from the group consisting of chemicals imparting the flavor of menthol, spearmint, wintergreen and cinnamon, said preservatives including sodium benzoate, and said surfactants are selected from the group consisting of polyoxyethylene (20) sorbitan monolaurate sodium dodecyl sulfate, sodium lauryl sulfate and mixtures thereof.
Claim 7
Dependent Claim
26 words
The package as set forth in claim 1 wherein said effective concentration of said hydrogen peroxide in said gel is between 3 percent and 8 percent.
Claim 8
Dependent Claim
18 words
The package as set forth in claim 6 wherein said concentration of said hydrogen peroxide is 6 percent.
Claim 9
Dependent Claim
24 words
The package as set forth in claim 1 wherein said bleaching gel additionally comprises a gelling agent, a thickening agent, and a neutralizing agent.
Claim 10
Dependent Claim
53 words
The package as set forth in claim 8 wherein said gelling agent is selected from the group consisting of a copolymer of acrylic acid cross-linked with polyallyl sucrose, organic polymer acid colloids including polyuronic acids, carboxypolymethylene compounds, polyester resins containing three carboxyl groups, partially hydrolyzed polyacrylates, polymethacrylates, polyoxyethylenes, polypropylene copolymers and mixtures thereof.
Claim 11
Dependent Claim
28 words
The package as set forth in claim 9 wherein said gelling agent is a copolymer of acrylic acid cross-linked with approximately 0.75 percent to 1.5 percent polyallyl sucrose.
Claim 12
Dependent Claim
26 words
The package system as set forth in claim 8 wherein said neutralizing agent is selected from the group consisting of sodium hydroxide, potassium hydroxide and triethanolamine.
Claim 13
Dependent Claim
29 words
The package as set forth in claim 8 wherein said thickening agent comprises non-ionic cellulose gums selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose and carboxymethyl cellulose.
Claim 14
Dependent Claim
32 words
The package as set forth in claim 1 wherein said viscous polishing composition additionally comprises substances selected from the group consisting of carriers, thickening agents, surfactants, preservatives, flavor enhancers and mixtures thereof.
Claim 15
Dependent Claim
21 words
The package as set forth in claim 1 wherein said alumina silicate has a particle size between 5 and 15 microns.
Claim 16
Dependent Claim
16 words
The package as set forth in claim 1 wherein said pigmenting agent is titanium dioxide particles.
Claim 17
Dependent Claim
22 words
The package as set forth in claim 15 wherein said titanium dioxide has a particle size of approximately 0.1 to 0.2 microns.
Claim 18
Dependent Claim
116 words
The package as set forth in claim 13 wherein said carriers comprise glycerin and water, said thickening agents comprise non-ionic cellulose gums selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose and carboxymethyl cellulose, said surfactants are selected from the group consisting of polyoxyethylene (20) sorbitan monolaurate Tween-20, sodium dodecyl sulfate, sodium lauryl sulfate and mixtures thereof, said preservatives include sodium benzoate, and said flavor enhancers are selected from the group consisting of sweeteners and flavoring chemicals, said sweeteners are selected from the group consisting of saccharin, sodium saccharin, methyl salicylate, sorbitol and aspartame, and said flavoring chemicals are selected from the group consisting of chemicals imparting the flavor of menthol, spearmint, wintergreen and cinnamon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-16 | 1995-12-16 | 1996-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-16 | 1999-12-16 | 2000-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-16 | 2003-12-16 | 2004-06-16 | $7700.00 | Window Closed / Lapsed |